Christopher Wong
type: MusicGroup
genre: cantopop
popularity: 40
followers: 36717
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b9da1281ae66a90b518b5782aef7b757107dfa6160e87417b537fb94a55a7f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/edda97b9-1491-4a29-a824-0038f9c2d684.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/edda97b9-1491-4a29-a824-0038f9c2d684.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/edda97b9-1491-4a29-a824-0038f9c2d684
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b9da1281ae66a90b518b5782aef7b757107dfa6160e87417b537fb94a55a7f7","name":"Christopher Wong","registered_at":"2026-06-12T13:05:24Z","symbol":"NIM0306421","token_address":"0x5828f95deb93b606bda1c25b56f19d2d8b3e89fe","type":"artist","uuid":"edda97b9-1491-4a29-a824-0038f9c2d684"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9da1281ae66a90b518b5782aef7b757107dfa6160e87417b537fb94a55a7f7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edda97b9-1491-4a29-a824-0038f9c2d684.json and https://artists.proofprofile.net/proofs/artist/edda97b9-1491-4a29-a824-0038f9c2d684.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x0b9da1281ae66a90b518b5782aef7b757107dfa6160e87417b537fb94a55a7f7","name":"Christopher Wong","registered_at":"2026-06-12T13:05:24Z","symbol":"NIM0306421","token_address":"0x5828f95deb93b606bda1c25b56f19d2d8b3e89fe","type":"artist","uuid":"edda97b9-1491-4a29-a824-0038f9c2d684"}
album: 再遇
  type: MusicAlbum
  date published: 1986-01-01
album: Moody
  type: MusicAlbum
  date published: 1987-01-01
album: Misty
  type: MusicAlbum
  date published: 1988-01-01
album: 焚情
  type: MusicAlbum
  date published: 1989-01-01
album: 復黑王-情歸何處
  type: MusicAlbum
  date published: 1990-01-01
album: 從頭認識 - 黃凱芹 - STAY WITH ME
  type: MusicAlbum
  date published: 1992-01-01
  track: 解情還須繫情人
    type: MusicRecording
    duration: PT4M22S
    duration ms: 262826
    explicit: false
    by artist: Christopher Wong
    in album: 從頭認識 - 黃凱芹 - STAY WITH ME
      type: MusicAlbum
      date published: 1992-01-01
    genre: cantopop
    isrc code: HKA610000968
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-20T13:32:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c4bdb1e1c5fb9df58f2a5a7b0f8a04016acfa95cfb2fee85cc269227881a3c6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610000968
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4bdb1e1c5fb9df58f2a5a7b0f8a04016acfa95cfb2fee85cc269227881a3c6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610000968.
      date published: 2026-07-05T01:12:41Z
    audio: 解情還須繫情人
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.561
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.716
      additional property: Energy
        type: PropertyValue
        value: 0.535
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.602
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.054
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.362
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.756
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 傳聞
  type: MusicAlbum
  date published: 1992-02-28
album: 平常心
  type: MusicAlbum
  date published: 1993-03-05
  track: 自製浪漫
    type: MusicRecording
    duration: PT4M9S
    duration ms: 249666
    explicit: false
    by artist: Christopher Wong
    in album: 平常心
      type: MusicAlbum
      date published: 1993-03-05
    genre: cantopop
    isrc code: HKG579303301
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T16:43:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbebe2569c24f299a7197d7f4c26cad3fa4dbbe8f1a4808f089bf07b60361ea0a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG579303301
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebe2569c24f299a7197d7f4c26cad3fa4dbbe8f1a4808f089bf07b60361ea0a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG579303301.
      date published: 2026-07-03T19:59:51Z
    audio: 自製浪漫
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.195
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 無怨無悔
album: 寶麗金88極品音色系列 - 黃凱芹
album: 黃凱芹給您留念30首 (2 CDs)
album: 黃凱芹給您留念30首
album: 環球2000超巨星系列 - 黃凱芹
album: 真經典 - 黃凱芹
album: LONG TIME NO SEE演唱會 (Live in Hong Kong / 2002)
album: 真經典 - 黃凱芹2
album: LONG TIME NO SEE 新曲 + 精選
album: 三合一珍藏集
album: 滾石香港黃金十年-黃凱芹精選
album: Wish You Were Here
album: 環球DSD視聽之王-黃凱芹
album: UNFORGETTABLE 演唱會 (Live in Hong Kong / /2003)
album: 黃凱芹三合一珍藏集 (3 In 1 Box Set)
album: 從頭認識 - 黃凱芹
album: Evergreen
album: 黃凱芹神話音樂劇《白蛇青蛇》原聲大碟
album: 黃凱芹神話音樂劇 - 白蛇青蛇
album: BTB-給您留念-黃凱芹
album: BTB-沒結果的一些感情-黃凱芹
album: 短篇小說-黃凱芹
album: 復黑王-妳最喜歡聽的歌
album: 分別
album: 變幻
album: 黃凱芹廿五年
album: 畫意
album: 黃凱芹 廿五年
album: 幸福
album: King Cross 天王時期
album: 煇黃時期
album: 櫻花の時期
album: 櫻花的時期
album: 再遇经典 (巡回演唱会2016广州站Live)
album: 桃花依舊
album: 詩人說夢
album: 旅情
album: 十里春風
album: 「私人珍藏」 作品集, Vol. 2 - 五光十色
album: 「私人珍藏」 作品集, Vol. 1 - 私人珍藏
album: 大徹大悟
album: 「私人珍藏」 作品集, Vol. 4 - 有趣的靈魂
album: 「私人珍藏」 作品集, Vol. 3 - You Make Me Smile
album: 黃凱芹懷舊經典金曲 Vol. 1
album: 聽‧ 黃凱芹 LIVE 2021 (Live)
album: 我是... 黃凱芹 Vol. 1
album: 我是... 黃凱芹 Vol. 2
album: 我是... 黃凱芹 Vol. 3
album: 我是... 黃凱芹 Vol. 4
album: 元祖文青：經典情歌
album: 元祖文青：動人情歌
album: 元祖文青：最愛情歌
album: 元祖文青:開唱前預習II
album: 元祖文青:開唱前預習III
album: 元祖文青:開唱前預習I
album: 細聽 黃凱芹35週年演唱會2022 (Live)

Danceability
type: PropertyValue
value: 0.552

Energy
type: PropertyValue
value: 0.394

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.554

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.095

Valence (Positivity)
type: PropertyValue
value: 0.297

Loudness (dB)
type: PropertyValue
value: -14.54

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

無怨無悔
type: MusicAlbum
date published: 1993-04-08

寶麗金88極品音色系列 - 黃凱芹
type: MusicAlbum
date published: 1997-01-01

黃凱芹給您留念30首 (2 CDs)
type: MusicAlbum
date published: 1998-01-01

黃凱芹給您留念30首
type: MusicAlbum
date published: 1998-01-01
track: 情歸何處
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244666
  explicit: false
  by artist: Christopher Wong
  in album: 黃凱芹給您留念30首
    type: MusicAlbum
    date published: 1998-01-01
  genre: cantopop
  isrc code: HKA610300675
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T21:01:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x903e3574cec0f5087f996a3bac5f26afbfe89ce448a9f2554901344b9487cfda
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610300675
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903e3574cec0f5087f996a3bac5f26afbfe89ce448a9f2554901344b9487cfda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610300675.
    date published: 2026-07-02T03:55:08Z
  audio: 情歸何處
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.3
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.692
    additional property: Energy
      type: PropertyValue
      value: 0.344
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.144
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.065
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.38
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.892
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 日安憂鬱
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243333
  explicit: false
  by artist: Christopher Wong
  in album: 黃凱芹給您留念30首
    type: MusicAlbum
    date published: 1998-01-01
  genre: cantopop
  isrc code: HKA610300677
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T23:30:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbc5d6105341378c0a3e55b6f0fcdd945fccadefff24996995a54418064d7011e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610300677
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5d6105341378c0a3e55b6f0fcdd945fccadefff24996995a54418064d7011e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610300677.
    date published: 2026-07-02T03:55:08Z
  audio: 日安憂鬱
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.49
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.695
    additional property: Energy
      type: PropertyValue
      value: 0.357
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.621
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.438
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.312
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 問青空
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206666
  explicit: false
  by artist: Christopher Wong
  in album: 黃凱芹給您留念30首
    type: MusicAlbum
    date published: 1998-01-01
  genre: cantopop
  isrc code: HKA610200125
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T23:29:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x50c17d39a2a44a5185f90486cb36358c9159bdc2b673c4a73b15bf4cb518f6ff
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 問青空
track: 解情還須繫情人
track: 舊朋友

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610200125

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c17d39a2a44a5185f90486cb36358c9159bdc2b673c4a73b15bf4cb518f6ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610200125.
date published: 2026-07-02T03:55:08Z

問青空
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 104.277
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.602
additional property: Energy
  type: PropertyValue
  value: 0.227
additional property: Speechiness
  type: PropertyValue
  value: 0.033
additional property: Acousticness
  type: PropertyValue
  value: 0.817
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.085
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.367
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.036
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

解情還須繫情人
type: MusicRecording
duration: PT4M24S
duration ms: 264173
explicit: false
by artist: Christopher Wong
in album: 黃凱芹給您留念30首
  type: MusicAlbum
  date published: 1998-01-01
genre: cantopop
isrc code: HKA610000968
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T13:32:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c4bdb1e1c5fb9df58f2a5a7b0f8a04016acfa95cfb2fee85cc269227881a3c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610000968
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4bdb1e1c5fb9df58f2a5a7b0f8a04016acfa95cfb2fee85cc269227881a3c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610000968.
  date published: 2026-07-02T03:30:09Z
audio: 解情還須繫情人
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.409
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.714
  additional property: Energy
    type: PropertyValue
    value: 0.495
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.607
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.053
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.343
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.503
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

舊朋友
type: MusicRecording
duration: PT5M24S
duration ms: 324493
explicit: false
by artist: Christopher Wong
in album: 黃凱芹給您留念30首
  type: MusicAlbum
  date published: 1998-01-01
genre: cantopop
isrc code: HKA610200126
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T03:32:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec04b4690118ca52af3f7fe43d748da117f3d3d8e314fd9b300a33a1b11345ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610200126
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec04b4690118ca52af3f7fe43d748da117f3d3d8e314fd9b300a33a1b11345ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610200126.
  date published: 2026-07-02T03:55:08Z
audio: 舊朋友
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.033
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.449
  additional property: Energy
    type: PropertyValue
    value: 0.443
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.217
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.233
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.39
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

環球2000超巨星系列 - 黃凱芹
type: MusicAlbum
date published: 2000-01-01

真經典 - 黃凱芹
type: MusicAlbum
date published: 2001-01-01

真經典 - 黃凱芹
type: MusicAlbum
date published: 2001-01-01

LONG TIME NO SEE演唱會 (Live in Hong Kong / 2002)
type: MusicAlbum
date published: 2002

真經典 - 黃凱芹2
type: MusicAlbum
date published: 2002-01-01

LONG TIME NO SEE 新曲 + 精選
type: MusicAlbum
date published: 2002-01-01
track: 好久不見
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219333
  explicit: false
  by artist: Christopher Wong
  in album: LONG TIME NO SEE 新曲 + 精選
    type: MusicAlbum
    date published: 2002-01-01
  genre: cantopop
  isrc code: HKA610200480
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T07:18:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc5e2bc099534454d85a7b93a13ccd603cc2b48511641a9dfa8d0ea4ef46ef890
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610200480
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e2bc099534454d85a7b93a13ccd603cc2b48511641a9dfa8d0ea4ef46ef890. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610200480.
    date published: 2026-06-13T13:32:09Z
  audio: 好久不見
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.664
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.663
    additional property: Energy
      type: PropertyValue
      value: 0.526
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.627
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.131
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.508
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.341
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

三合一珍藏集
type: MusicAlbum
date published: 2002-02-06

滾石香港黃金十年-黃凱芹精選
type: MusicAlbum
date published: 2002-11-21

Wish You Were Here
type: MusicAlbum
date published: 2003-01-01

環球DSD視聽之王-黃凱芹
type: MusicAlbum
date published: 2003-01-01

UNFORGETTABLE 演唱會 (Live in Hong Kong / /2003)
type: MusicAlbum
date published: 2003-04-25
track: 如果你知我苦衷 - Live
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233560
  explicit: false
  by artist: Christopher Wong
  in album: UNFORGETTABLE 演唱會 (Live in Hong Kong / /2003)
    type: MusicAlbum
    date published: 2003-04-25
  genre: cantopop
  isrc code: HKUM72400032
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T15:57:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf02085cb4d2e7ecaad7b710954f18476884f99bb0b315545539676949e99adb0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958576
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958576
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKUM72400032
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T16:22:28Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02085cb4d2e7ecaad7b710954f18476884f99bb0b315545539676949e99adb0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKUM72400032.
    date published: 2026-07-18T16:22:28Z
  audio: 如果你知我苦衷 - Live
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.67
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.378
    additional property: Energy
      type: PropertyValue
      value: 0.422
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.807
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.6
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.252
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.83
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

黃凱芹三合一珍藏集 (3 In 1 Box Set)
type: MusicAlbum
date published: 2004-01-01

從頭認識 - 黃凱芹
type: MusicAlbum
date published: 2004-01-01

Evergreen
type: MusicAlbum
date published: 2004-01-01

黃凱芹神話音樂劇《白蛇青蛇》原聲大碟
type: MusicAlbum
date published: 2005-08-30

黃凱芹神話音樂劇 - 白蛇青蛇
type: MusicAlbum
date published: 2005-08-30

BTB-給您留念-黃凱芹
type: MusicAlbum
date published: 2007-01-01

BTB-沒結果的一些感情-黃凱芹
type: MusicAlbum
date published: 2008-01-01

短篇小說-黃凱芹
type: MusicAlbum
date published: 2008-01-01

復黑王-妳最喜歡聽的歌
type: MusicAlbum
date published: 2009-01-01

分別
type: MusicAlbum
date published: 2010-09-21

變幻
type: MusicAlbum
date published: 2011-09-02

黃凱芹廿五年
type: MusicAlbum
date published: 2012-01-01
track: 最佳男配角
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235613
  explicit: false
  by artist: Christopher Wong
  in album: 黃凱芹廿五年
    type: MusicAlbum
    date published: 2012-01-01
  genre: cantopop
  isrc code: HKA610400085
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T09:58:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6d76d8c00d485618ad3105a9158bc3f24c6dcf056971319e8c42bc8e6fe04626
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610400085
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d76d8c00d485618ad3105a9158bc3f24c6dcf056971319e8c42bc8e6fe04626. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610400085.
    date published: 2026-07-02T03:55:08Z
  audio: 最佳男配角
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.293
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.573
    additional property: Energy
      type: PropertyValue
      value: 0.534
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.417
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.182
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.321
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.67
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 易愛難收
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221346
  explicit: false
  by artist: Christopher Wong
  in album: 黃凱芹廿五年
    type: MusicAlbum
    date published: 2012-01-01
  genre: cantopop
  isrc code: HKA610300223
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T07:36:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8411f943a7c7ca9133263ca0624cfce17fa0ccdd36af94e1d17ad00f28531fdb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610300223
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8411f943a7c7ca9133263ca0624cfce17fa0ccdd36af94e1d17ad00f28531fdb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610300223.
    date published: 2026-07-02T03:30:09Z
  audio: 易愛難收
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.819
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.571
    additional property: Energy
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T03:55:08Z

好久不見
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黃凱芹廿五年
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date published: 2012-01-01

黃凱芹廿五年
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date published: 2012-01-01

畫意
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畫意
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date published: 2012-03-09

黃凱芹 廿五年
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幸福
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King Cross 天王時期
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煇黃時期
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煇黃時期
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date published: 2015-10-19

櫻花の時期
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date published: 2016-07-21

櫻花的時期
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date published: 2016-07-27
track: 深秋立樓頭
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:25:57Z
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再遇经典 (巡回演唱会2016广州站Live)
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桃花依舊
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詩人說夢
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-19T03:36:41Z
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旅情
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十里春風
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「私人珍藏」 作品集, Vol. 2 - 五光十色
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「私人珍藏」 作品集, Vol. 1 - 私人珍藏
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date published: 2019-05-17

大徹大悟
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date published: 2019-05-17

「私人珍藏」 作品集, Vol. 4 - 有趣的靈魂
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date published: 2021-06-08

「私人珍藏」 作品集, Vol. 3 - You Make Me Smile
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date published: 2021-06-08

黃凱芹懷舊經典金曲 Vol. 1
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黃凱芹懷舊經典金曲 Vol. 1
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date published: 2021-07-05

聽‧ 黃凱芹 LIVE 2021 (Live)
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date published: 2022-01-14

我是... 黃凱芹 Vol. 1
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我是... 黃凱芹 Vol. 2
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date published: 2022-06-24

我是... 黃凱芹 Vol. 3
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我是... 黃凱芹 Vol. 4
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元祖文青：經典情歌
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元祖文青：動人情歌
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元祖文青：最愛情歌
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元祖文青:開唱前預習II
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元祖文青:開唱前預習III
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元祖文青:開唱前預習I
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細聽 黃凱芹35週年演唱會2022 (Live)
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大彻大悟
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:25:57Z
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「私人珍藏」 作品集, Vol. 4 - 有趣的灵魂
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旅情
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「私人珍藏」 作品集, Vol. 1 - 私人珍藏
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「私人珍藏」 作品集, Vol. 2 - 五光十色
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幸福
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「私人珍藏」 作品集, Vol. 3 - You Make Me Smile
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黄凯芹神话音乐剧 - 白蛇青蛇
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分别
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画意
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变幻
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细听 黄凯芹35周年演唱会2022
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星光燦爛
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by artist: 周影
by artist: Jacky Cheung
by artist: Paula Tsui
by artist: Hacken Lee
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subject of: OpenTimestamps Proof of Existence
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晚情
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易愛難收
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